package com.atguigu.gulimall.gulimallorder.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * @Author: Zjn ; Bring it on !!!
 * @Date: 2021/11/24 0024 18:44
 * Note:
 */
@Configuration
public class GuliFeignConfig {

    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor(){
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate template) {

                //1.RequestContextHolder拿到刚进来的这个请求头
                ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
                if(requestAttributes!=null){
                    HttpServletRequest request = requestAttributes.getRequest();
                    if (request!=null) {
                        //同步请求头数据
                        template.header("Cookie",request.getHeader("Cookie"));
                    }
                }
            }
        };
    }
}
